Shrubs without bristles and spines. Leaves: stipules minute, subulate; blade elliptic or obovate, surfaces glabrous or glabrate abaxially, glabrous adaxially, pinnately veined. Inflorescences: bracts subtending pedicels caducous. Flowers: hypanthium cup-shaped; sepals green; petals white; styles connate and grooved at anthesis, distinct in fruit. Capsules 2-locular, longitudinally 2-grooved. x = 11.